Rolex brand Model (Watch) GMT-Master II Reference number 16710 Automatic winding Case Material Steel Strap material Steel Condition Used The item shows slight signs of wear, such as light scratches, but not perceptible to the touch. Original Rolex warranty, no box Automatic winding Case Case Material Steel Diameter 40 mm Waterproof 10 ATM Bezel material Steel Glass Sapphire crystal Black dial Year 2006/07 Numbers on the dial No numbers Strap Strap material Steel Strap colour Steel Folding clasp Clasp material Steel Functions From